125838523 has 2 divisors, whose sum is σ = 125838524. Its totient is φ = 125838522.

The previous prime is 125838521. The next prime is 125838551. The reversal of 125838523 is 325838521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125838523 - 2¹ = 125838521 is a prime.

Together with 125838521, it forms a pair of twin primes.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (125838521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62919261 + 62919262.

It is an arithmetic number, because the mean of its divisors is an integer number (62919262).

Almost surely, 2^125838523 is an apocalyptic number.

125838523 is a deficient number, since it is larger than the sum of its proper divisors (1).

125838523 is an equidigital number, since it uses as much as digits as its factorization.

125838523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 37.

The square root of 125838523 is about 11217.7770970901. Note that the first 3 decimals coincide. The cubic root of 125838523 is about 501.1155399569.

The spelling of 125838523 in words is "one hundred twenty-five million, eight hundred thirty-eight thousand, five hundred twenty-three".